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Convert Calories per Second-Centimeter-Celsius to BTU·inch per Hour-Square Foot-Fahrenheit

Instantly convert Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)) to BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F)) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: cal/(s·cm·°C) to BTU·in/(hr·ft²·°F)multiply by 2900.96

Reference Table

Calories per Second-Centimeter-Celsius (cal/(s·cm·°C))BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F))
12900.96
514504.8
1029009.6
2572524.1
50145048
100290096

How to Convert Calories per Second-Centimeter-Celsius to BTU·inch per Hour-Square Foot-Fahrenheit

Formula

To convert Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)) to BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F)): multiply by 2900.96

Step-by-Step

  1. Start with your value in Calories per Second-Centimeter-Celsius (cal/(s·cm·°C)).
  2. Multiply by 2900.96 to perform the conversion.
  3. The result is your value expressed in BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F)).

Conversion Factor

1 cal/(s·cm·°C) = 2900.96 BTU·in/(hr·ft²·°F)

Reverse Factor

1 BTU·in/(hr·ft²·°F) = 0.000344713 cal/(s·cm·°C)

Worked Example

Convert 25 Calories per Second-Centimeter-Celsius to BTU·inch per Hour-Square Foot-Fahrenheit: 25 cal/(s·cm·°C) = 72524.1 BTU·in/(hr·ft²·°F)

About Calorie per Second-Centimeter-Celsius (cal/(s·cm·°C))

A CGS-system unit of thermal conductivity equal to exactly 418.4 W/(m·K) — a large unit, appropriate only for highly conductive solids like pure metals at low temperatures. cal/(s·cm·°C) appears almost exclusively in: pre-1980s chemistry and physics literature (Bridgman's high-pressure thermal-conductivity measurements published 1920s-50s; Maxwell-Eucken and Bruggeman-model effective-medium thermal-conductivity papers in J. Chem. Phys.), Eastern-European and Soviet engineering documentation that retained CGS units into the 1990s, and historical-era thermochemistry textbooks. Reference values in this unit are inconveniently small for most materials (copper ~0.96 cal/(s·cm·°C); aluminum 0.57; iron 0.12; water 0.0014) which is part of why the unit fell out of favor in favor of W/(m·K). Today mostly useful for interpreting historical data and older thermochemistry papers. Convert cal/(s·cm·°C) to W/(m·K) by multiplying by 418.4.

About BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F))

An imperial thermal-conductivity unit (≈ 0.1442 W/(m·K) per NIST SP 811 = exactly 1/12 of BTU/(hr·ft·°F)) used almost exclusively for US building-insulation materials. The peculiar 'inch in the numerator' construction lets the unit cancel directly into R-value per unit thickness: an insulation product with k = 0.25 BTU·in/(hr·ft²·°F) achieves R-4 per inch of installed thickness (an R-19 wall = 19/0.25 = ~5 inches of that product). BTU·in/(hr·ft²·°F) is the unit on fiberglass-batt packaging (Owens Corning, Johns Manville, Knauf), rigid-foam-board labels (Dow, Owens Corning Foamular XPS, Dow Thermax polyiso), spray-foam (BASF Walltite, Demilec, Lapolla) data sheets, mineral-wool batts (Rockwool), cellulose loose-fill, and all US Department of Energy ENERGY STAR insulation prescriptive R-value targets. Reference values: fiberglass batt 0.27 BTU·in/(hr·ft²·°F) = R-3.7/in; XPS rigid-foam 0.20 = R-5/in; closed-cell spray foam 0.16 = R-6.5/in; aerogel 0.10 = R-10/in.

Quick Facts

  • 1 Calorie per Second-Centimeter-Celsius equals 2900.96 BTU·inch per Hour-Square Foot-Fahrenheit
  • 1 BTU·inch per Hour-Square Foot-Fahrenheit equals 0.000344713 Calories per Second-Centimeter-Celsius
  • Calorie per Second-Centimeter-Celsius is a unit of thermal conductivity
  • BTU·inch per Hour-Square Foot-Fahrenheit is a unit of thermal conductivity
  • This conversion is commonly used in insulation design, heat exchanger engineering, and material science
  • The Calorie per Second-Centimeter-Celsius belongs to the metric system
  • The BTU·inch per Hour-Square Foot-Fahrenheit belongs to the imperial system

Common Calorie per Second-Centimeter-Celsius to BTU·inch per Hour-Square Foot-Fahrenheit Conversions

Calories per Second-Centimeter-Celsius (cal/(s·cm·°C))BTU·inch per Hour-Square Foot-Fahrenheit (BTU·in/(hr·ft²·°F))
0.0129.0096
0.1290.096
0.25725.241
0.51450.48
12900.96
25801.92
38702.89
514504.8
1029009.6
1543514.4
2058019.2
2572524.1
50145048
75217572
100290096
250725241
5001450480
10002900960
500014504800
1000029009600

Understanding Calories per Second-Centimeter-Celsius

The Calorie per Second-Centimeter-Celsius (symbol: cal/(s·cm·°C)) is a unit of thermal conductivity. A CGS-system unit of thermal conductivity equal to exactly 418.4 W/(m·K) — a large unit, appropriate only for highly conductive solids like pure metals at low temperatures. cal/(s·cm·°C) appears almost exclusively in: pre-1980s chemistry and physics literature (Bridgman's high-pressure thermal-conductivity measurements published 1920s-50s; Maxwell-Eucken and Bruggeman-model effective-medium thermal-conductivity papers in J. Chem. Phys.), Eastern-European and Soviet engineering documentation that retained CGS units into the 1990s, and historical-era thermochemistry textbooks. Reference values in this unit are inconveniently small for most materials (copper ~0.96 cal/(s·cm·°C); aluminum 0.57; iron 0.12; water 0.0014) which is part of why the unit fell out of favor in favor of W/(m·K). Today mostly useful for interpreting historical data and older thermochemistry papers. Convert cal/(s·cm·°C) to W/(m·K) by multiplying by 418.4.

It belongs to the metric measurement system.

Calories per Second-Centimeter-Celsius are commonly used in insulation design, heat exchanger engineering, and material science.

Understanding BTU·inch per Hour-Square Foot-Fahrenheit

The BTU·inch per Hour-Square Foot-Fahrenheit (symbol: BTU·in/(hr·ft²·°F)) is a unit of thermal conductivity. An imperial thermal-conductivity unit (≈ 0.1442 W/(m·K) per NIST SP 811 = exactly 1/12 of BTU/(hr·ft·°F)) used almost exclusively for US building-insulation materials. The peculiar 'inch in the numerator' construction lets the unit cancel directly into R-value per unit thickness: an insulation product with k = 0.25 BTU·in/(hr·ft²·°F) achieves R-4 per inch of installed thickness (an R-19 wall = 19/0.25 = ~5 inches of that product). BTU·in/(hr·ft²·°F) is the unit on fiberglass-batt packaging (Owens Corning, Johns Manville, Knauf), rigid-foam-board labels (Dow, Owens Corning Foamular XPS, Dow Thermax polyiso), spray-foam (BASF Walltite, Demilec, Lapolla) data sheets, mineral-wool batts (Rockwool), cellulose loose-fill, and all US Department of Energy ENERGY STAR insulation prescriptive R-value targets. Reference values: fiberglass batt 0.27 BTU·in/(hr·ft²·°F) = R-3.7/in; XPS rigid-foam 0.20 = R-5/in; closed-cell spray foam 0.16 = R-6.5/in; aerogel 0.10 = R-10/in.

It belongs to the imperial measurement system.

BTU·inch per Hour-Square Foot-Fahrenheit are commonly used in insulation design, heat exchanger engineering, and material science.

Why Convert Calories per Second-Centimeter-Celsius to BTU·inch per Hour-Square Foot-Fahrenheit?

Converting between Calories per Second-Centimeter-Celsius and BTU·inch per Hour-Square Foot-Fahrenheit is a frequent requirement for engineers, scientists, and students working with thermal conductivity values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate thermal conductivity conversion is essential.

Frequently Asked Questions

How do I convert Calories per Second-Centimeter-Celsius to BTU·inch per Hour-Square Foot-Fahrenheit?

A CGS-system unit of thermal conductivity equal to exactly 418. To convert Calories per Second-Centimeter-Celsius to BTU·inch per Hour-Square Foot-Fahrenheit, multiply by 2900.96. For example, 25 cal/(s·cm·°C) equals 72524.1 BTU·in/(hr·ft²·°F).

How many BTU·inch per Hour-Square Foot-Fahrenheit are in 1 Calorie per Second-Centimeter-Celsius?

There are 2900.96 BTU·inch per Hour-Square Foot-Fahrenheit in 1 Calorie per Second-Centimeter-Celsius.

How many Calories per Second-Centimeter-Celsius are in 1 BTU·inch per Hour-Square Foot-Fahrenheit?

There are 0.000344713 Calories per Second-Centimeter-Celsius in 1 BTU·inch per Hour-Square Foot-Fahrenheit.

What is the formula for Calorie per Second-Centimeter-Celsius to BTU·inch per Hour-Square Foot-Fahrenheit conversion?

The formula is: multiply by 2900.96. This means 1 cal/(s·cm·°C) = 2900.96 BTU·in/(hr·ft²·°F).

Is a Calorie per Second-Centimeter-Celsius bigger than a BTU·inch per Hour-Square Foot-Fahrenheit?

No. One Calorie per Second-Centimeter-Celsius is smaller than one BTU·inch per Hour-Square Foot-Fahrenheit because 1 cal/(s·cm·°C) equals 2900.96 BTU·in/(hr·ft²·°F), which is greater than 1.

When do you need to convert between Calories per Second-Centimeter-Celsius and BTU·inch per Hour-Square Foot-Fahrenheit?

An imperial thermal-conductivity unit (≈ 0. Calorie per Second-Centimeter-Celsius and BTU·inch per Hour-Square Foot-Fahrenheit are both thermal conductivity units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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